James freeman thomas



(No Model.)

J. F. THOMAS.

CHAIR SOCKET.

No. 825,026. Patented Aug. 25,1885.

- WITNESSES ATTORNEYS.

NITED STATES PATENT OFFICE.

JAMES FREEMAN THOMAS, OF DENVER, COLORADO.

CHAIR-SOCKET.

SPECIFICATION forming part of Letters Patent No. 325,026, dated August25, 1885.

Application filed March 18, 1884.

T0 aZZ whom it may concern.-

Be it known that I, JAMES FREEMAN THOM- AS, of Denver, in the county ofArapahoe and State of Colorado, have invented a new and ImprovedOhairSoc-ket, of which the following is a full, clear, and exactdescription.

The object of my invention is to provide a new and improved screw-socketto be used on furniture for holding the ends of chair-rounds in place inthe legs, for holding drawerpulls and knobs in place, and for variouslike purposes.

The invention consists in the construction and arrangement ofparls, aswill be hereinafter fully described and claimed.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a perspective view of a chair having my improved socket.Fig. 2 is a longitudinal sectional view of the socket provided with alocking device on the line to to,

Fig. 3. Fig. 3 is a longitudinal sectional view of the same on the line2 2, Fig. 2. Fig. 4 is a sectional view of the socket as used on adrawer knob or pull.

On each end of the chair-round A a ferrule, B, is held, and secured inplace by a rivet, b, and on the end of the ferrule a screw, 0, isformed.

In the inner surface of each chair-leg D a circular hole, E, is made,and is provided in the sides with two diametrically-opposite grooves, E,which increase in depth from the outer toward the inner end of the hole.A screw-socket is formed of two semi-cylindric a1 sockets, G, havingtheir inner surfaces screw-threaded, and each having a prong or rib, H,on the middle on the outer surface, the outer edges of the said ribsbeing beveledtl1at is, the height of the rib increases from the outertoward the inner end of the section.

(No model.)

The soeket'sections G are placed in the apertures E, the beveled ribs Hpassing into the grooves F to prevent the said sections from turning,and then the screws 0 are screwed into the sockets. The screws 0 on theopposite ends of a chair-round must be threaded in inverse directions,so that by screwing the screws into the sockets held in the legs thesaid legs will be drawn toward each other by the rounds.

The outer end of the ferrule B and the in ner end of the screws 0 areprovided with a longitudinal slot, J, through which a metal strip orkey, K, is passed, which is secured at its ends to a ring, L, held toslide on the ferrule. After the screw 0 has been screwed in the socketthe ring L is pushed toward the socket so that the key K passes inbetween the socket-sections G, thus preventing the screw from beingturned. If the screw is to removed, the key or plate K must first bewithdrawn from between the soeketsections G.

If the socket is to be used for drawer pulls or knobs, the knob M isscrewed or otherwise fastened on the outer end of the ferrule B, and thering L forms the rosette for the knob, the socket-sections being held inthe drawer N in the same manner as in the chair-legs.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

The combination of an internally-screwthreaded socket having a notch onits outer end, with a ferrule havingathreaded portion, and a slotextending intoapartof the threads, and a ring having a key mountedloosely upon the ferrule, with the key in the slot of the same, as andfor the purpose set forth.

JAMES FREEMAN THOMAS.

Witnesses:

SAMUEL SHAMP, ORLANDO J. Hosronn, O. A. Human.

